STM32H745I-DISCO – External flash erase/init failure with TouchGFX project

[Tharun123]

Hi Community,

I am using STM32H745I-DISCO board and generated a TouchGFX project and attempted to flash/debug from CubeIDE. The flashing process fails during the erase stage.

Observed Errors

• Initially: “Error: failed to erase memory”
• After enabling external loader (without initialization):
  • Erase still fails
• After enabling external loader with Initialize = true:
  • “Failed to initialize external memory”
  • “Error in initializing ST-LINK device”
• In CubeProgrammer:
  • External flash is detected when selecting loader MT25TL01_STM32H745I-DISCO
  • However:
    • Mass erase fails
    • Sector erase also fails
    • Error message:
      • “Sector erase operation has failed… please verify flash protection” 

I am using STM32CubeIDE v1.18.1 and STM32CubeProgrammer: v2.16.x

I have attached screenshots.

Can someone help what could be the issue?

Thanks.

[mƎALLEm]

Hello,

---

@Tharun123 wrote:

• In CubeProgrammer:
  • External flash is detected when selecting loader MT25TL01_STM32H745I-DISCO
  • However:
    • Mass erase fails
    • Sector erase also fails
    • Error message:
      • “Sector erase operation has failed… please verify flash protection” 

---

Based on this statement I have the impression there is a problem with the external memory.

Try to run the QSPI example provided in CubeH7: https://github.com/STMicroelectronics/STM32CubeH7/tree/master/Projects/STM32H745I-DISCO/Examples/QSPI/QSPI_MemoryMappedDual

If it doesn't work there is an issue with the external memory, either the memory is broken or there is something gone wrong on the board/PCB!